When I valet at fancy hotels if I am in my M3 I tip them $20 and tell them to not scratch anything up in which case they just leave it up in front of the hotel and never move it. If I am in my wife's VW CC I just tip them a few dollars and they just park it wherever they park it. For my lifted FJ cruiser I tip a $20 since I know it will not fit in their parking garage at which point the valet person would rather keep the $20 for themselves and leave it up front rather than tell me it is to large for their garage. Nothing like having your muddied up 4x4 parked up front of a posh hotel right next to all the exotics... haha
