Car detailing service near Warminster, PA

Went to Medford Autowash for the first time today since some of the Covid 19 restrictions had eased up in NJ. The associates who were doing the work to clean and wash the vehicles were very friendly and courteous as they had been in the past. I went to pay for the service and showed a coupon for the carwash on my phone and was told that it could not be honored since I had not taken the time to PRINT the coupon on to a piece of paper. I receive text messages from the same establishment with different perks randomly for 50% off a wash or a free wash for your Birthday and have shown them the text on the phone and that was OK, trying to be environmentally conscious I felt I could do the same with a website coupon, makes sense right? No, sorry no discount unless you print the coupon, and yes the page before says to print to redeem but what world are we living in at this point? They can't make an exception to this and possibly realize that they would actually be helping the environment but not requiring people to physically print coupons? The guys who do the "Real Work" there are great, maybe management can learn a few things from them.

Took my wife's car in to have a head unit installed. Simple install. Nothing complicated. When I picked up the car, the AIRBAG Warning light was on. I called and the guy told me it just needed to "cycle itself" because he had to unplug the warning light. Got home and looked at the invoice and noticed that he charged me $150.00 for a steering wheel control that Walmart and Amazon both sell for $28.00. I trusted that he wouldn't gouge me so I didn't ask the price. 4 weeks and 1500 miles later and the AIRBAG light was still on. I was about to trade in the car so I called him and let him know. His only response was that it should've recycled and to take it to the dealer. No mention of him paying to fix what he caused, etc. The dealer quoted me $150 just to look at it. Everything I read online said it was a seat sensor that can be blown if wires behind the dash get shorted. When I got there to trade the vehicle my value was lowered by $500.00. This guy's error cost me $500.00 in trade value on my car. I'm filing in District Court today to at least get back the money I paid him to do the install. I'm out over $750.00 but all I want back is my $250.00 for the install. I hate being ripped off. People need to take accountability for their mistakes.