Looking at the time you posted the original post it was 1.39 PM, now the forum clock is actually a bit fast, so it would have roughly been 1.25pm.
Now the appointment was at 1.00pm. Bit of simple maths:
So that gives 25 minutes to ring up the motor place, ask where they are, get all upset, log into PF1, make a new Account and post a strongly worded complaint against the place.
Obviously you must have been watching the clock and decided to complain the moment it turned 1.00 pm and they were not there yet.
Hmmmmmmmmm Maybe if you went off at them like you are doing here, then its no wonder they said they weren't coming -- Ever thought they could be running late, and you going off your nut they more than likely said stuff it.
Edited: just thought I'd look them up and see what the site really says -- Bit strange cant actually find any business with that exact name, only a general cateorgy.