Help! My Parked Car Got Shoved Back Two Feet by an SUV

Well, the CR-V left but the owner also left a reply/apology to a note I left under the wiper. It doesn’t appear that there is any dent, so it probably wasn’t the CR-V that did the shoving. But the Outback was clearly moved back, because I parked just in front of parking signage designating the beginning of the alternate-side parking area. It was a rainy day, so any trace of skids (if there were any, as suggested by Francizek) have been erased. So my question now is, “Could a larger vehicle have nudged my car back without leaving a visible mark?” I’m completely mystified.