It is likely that the ECU will clear the code after so many miles or successful trips without issue. You should have 2 DPF pressure sensors, one before the filter and one after, the codes are thrown when there is a flow differential outside of boundaries or when the system has an error. If for some reason you still have the pressure sensor error code, it could be possible that the other pressure sensor is bad, although the ECU code should be more specific as to which one it is. You could also have the shop do a forced regen with their scan tool, although if you just got the DPF cleaned, it shouldnt require a regen this soon, presumably the flow through should be good with a clean DPF.

Hope that helps

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Stable Mates:
1987 300TD 310K mi (Hans)
2008 Jeep Grand Cherokee OM642 165k mi (Benzrokee)